diff options
| author | Dan Carpenter <error27@gmail.com> | 2010-05-26 00:38:56 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-26 00:38:56 -0700 |
| commit | ed0f160ad674407adb3aba499444f71c83289c63 (patch) | |
| tree | 39cff780164f55d6cda23018431ab553c4477f9e | |
| parent | d938a702e5ce8909ea68be97566150507bfea4df (diff) | |
ipmr: off by one in __ipmr_fill_mroute()
This fixes a smatch warning:
net/ipv4/ipmr.c +1917 __ipmr_fill_mroute(12) error: buffer overflow
'(mrt)->vif_table' 32 <= 32
The ipv6 version had the same issue.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/ipmr.c | 2 | ||||
| -rw-r--r-- | net/ipv6/ip6mr.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 45889103b3e..856123fe32f 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -1911,7 +1911,7 @@ static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb, struct rtattr *mp_head; /* If cache is unresolved, don't try to parse IIF and OIF */ - if (c->mfc_parent > MAXVIFS) + if (c->mfc_parent >= MAXVIFS) return -ENOENT; if (VIF_EXISTS(mrt, c->mfc_parent)) diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index bd9e7d3e9c8..073071f2b75 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -2017,7 +2017,7 @@ static int __ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb, struct rtattr *mp_head; /* If cache is unresolved, don't try to parse IIF and OIF */ - if (c->mf6c_parent > MAXMIFS) + if (c->mf6c_parent >= MAXMIFS) return -ENOENT; if (MIF_EXISTS(mrt, c->mf6c_parent)) |